Finding the Fourth Proportional to 145,663.52, 218,420.75 and 66,710.08
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Solution
The fourth proportional to 145,663.52, 218,420.75 and 66,710.08 is: 100,030.99
Step by Step Solution
- Step 1: Write the proportion equation
145,663.52 : 218,420.75 = 66,710.08 : x - Step 2: Convert to fraction form
145,663.52/218,420.75 = 66,710.08/x - Step 3: Cross multiply
145,663.52x = 218,420.75 × 66,710.08 - Step 4: Simplify right side
145,663.52x = 14,570,866,145.96 - Step 5: Solve for x
x = 14,570,866,145.96/145,663.52 - Step 6: Final answer
x = 100,030.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.